CN102740361B

CN102740361B - Wireless network convergence transmission method, system and equipment

Info

Publication number: CN102740361B
Application number: CN201110092172.2A
Authority: CN
Inventors: 刘晟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-04-13
Filing date: 2011-04-13
Publication date: 2016-01-13
Anticipated expiration: 2031-04-13
Also published as: BR112013002305B1; US20130121282A1; BR112013002305A2; EP2574096A1; RU2532416C2; EP2574096B1; EP2574096A4; US8693456B2; RU2013105756A; CN102740361A; WO2012139373A1

Abstract

The embodiment of the invention discloses the method for wireless network aggregate transmission, system and equipment, be applied to the communication technology.First according to the positional information of subscriber equipment at least two wireless networks by PDN Gateway in the wireless network aggregate transmission of the embodiment of the present invention, correspondingly obtain the network load information in each wireless network current location of this subscriber equipment place, and determine the mode of the data flow using these at least two wireless access technology transmission user equipment according to network load information and preset strategy, finally according to the data flow of the mode transmission user equipment determined.Like this according to the load state of network reality, the data volume using each wireless access technology to transmit in reasonable distribution aggregation networks, makes the resource of each wireless network in aggregation networks be effectively utilized.

Description

Wireless network convergence transmission method, system and equipment

Technical field

The present invention relates to communication technical field, particularly wireless network convergence transmission method, system and equipment.

Background technology

In mobile communications network evolution, owing to being subject to various conditionality, emerging wide-band mobile communication network and existing network will exist for a long time jointly, such as: 3G (Third Generation) Moblie Partnership Program (3rdGenerationPartnershipProject, 3GPP) universal mobile telecommunications system (the UniversalMobileTelecommunicationsSystem of tissue release, UMTS) network, to Long Term Evolution (LongTermEvolution, in the process of LTE) network Development, UMTS and LTE two networks will long-term co-existence.

Mobile communications network is by wireless access network (RadioAccessNetwork, and core net (CoreNetwork RAN), CN) form, subscriber equipment (UserEquipment, UE) is linked into core net by air interface (abbreviation is eated dishes without rice or wine) via wireless access network.Eat dishes without rice or wine the wireless access technology (RadioAccessTechnology always adopted with mobile communications network, RAT) closely related, for ease of describing, below by mobile communications network corresponding for a kind of wireless access technology referred to as wireless network, UMTS and LTE is exactly two kinds of different wireless access technologys, and the wireless network of their correspondences is called UMTS network and LTE network.The transmission channel that subscriber equipment is set up in a wireless network is referred to as wireless access, wherein, a transmission channel is a carrying (Bearer) of this wireless access technology, as the carrying in UMTS network and LTE network is called UMTS carrying and LTE carrying.

In the process of UMTS network to LTE network evolution, the number of users in LTE network and traffic carrying capacity then progressively increase, and correspondingly user's Mean Speed will decline; And will gradually reduce along with the number of users on UMTS network and traffic carrying capacity, the availability of frequency spectrum of UMTS network will decline.Therefore, from UMTS in LTE network transition process, need effectively to utilize the frequency spectrum resource on UMTS network, avoid the middle and later periods in migration, the overload on LTE network frequency spectrum causes the decline of Consumer's Experience.

In order to avoid the problems referred to above, adopt the method for wireless network aggregate transmission, the i.e. convergence of the multiple wireless access of a subscriber equipment, can make original UMTS resource be fully utilized, also not have the co-channel interference between the different system of network and adjacent frequency interference problem.A kind of wireless network assemblage method is: introduce mobile couple in router (MobileAccessRouter at user side, MAR), this router converges the different wireless access technology link of user side, such as converge the wireless link of UMTS and WLAN etc., and be responsible for each wireless link distribution Internet protocol (InternetProtocol of up direction, IP) divide into groups, and by local area network (LAN) for each terminal use provides data access; Introduce MAR server agent (MARServerProxy) equipment at network side, each wireless link distribution IP that this equipment is responsible for down direction divides into groups.

But this wireless network aggregate transmission scheme needs to introduce the functional entity such as MAR router and server proxy server, system complexity and cost can be added, and the another kind of wireless network assemblage method that 3GPP tissue proposes can the structure of simplified network system, particularly: at subscriber equipment and packet data network (PacketDataNetwork, PDN) gateway configures respectively at least one route filter (Routingfilter), source/destination IP address is comprised in the route filter of configuration, source/destination port numbers, the features such as protocol type, for mating the IP stream of packets with same characteristic features.IP address configuration corresponding for each wireless access (comprising non-3 gpp wireless access, 3GPP wireless access) is first different Care-of Address (Care-ofAddress by subscriber equipment, CoA), each wireless access is all through PDN Gateway, the wherein corresponding Care-of Address of each route filter on PDN Gateway, like this at down direction, the IP stream of packets of mating through route filter is routed to wireless network corresponding to corresponding Care-of Address by PDN Gateway; In like manner at up direction, the route filter of subscriber equipment carries out the flow-dividing control of IP stream of packets.

The wireless network assemblage method that above-mentioned 3GPP tissue proposes is applicable to the convergence of non-3 gpp and 3GPP wireless access, and when wireless network aggregate transmission, the wireless access on up-downlink direction is fixing, well can not utilize the resource of each wireless network.

Summary of the invention

The embodiment of the present invention provides wireless network convergence transmission method, system and equipment, effectively utilizes the resource of each wireless network in aggregation networks.

The embodiment of the present invention provides a kind of wireless network convergence transmission method, comprising:

Obtain the positional information of subscriber equipment at least two wireless networks;

The network load information in each wireless network current location of described subscriber equipment place is correspondingly obtained according to described positional information;

According to described network load information and preset strategy, determine that at least two wireless access technologys described in using transmit the mode of described customer equipment data stream;

The data flow of described subscriber equipment is transmitted according to the described mode determined.

The embodiment of the present invention provides a kind of networks converge transmission method, comprising:

Detect mode down direction using at least two wireless access technology transmission user device data streams; Described down direction use the mode of at least two wireless access technology transmission user device data streams be that packet data network PDN Gateway is determined according to the network load information in the wireless network current location of at least two, subscriber equipment place;

According to the mode of the data flow of at least two wireless access technology transmission user equipment described in use on the mode determination up direction of described detection;

According to the described mode determined by the upstream of described subscriber equipment from the wireless network transmissions of correspondence to packet-based core networks.

The embodiment of the present invention provides a kind of gateway device, comprising:

Position acquisition unit, for obtaining the positional information of subscriber equipment at least two wireless networks;

Load acquiring unit, the positional information for obtaining according to described position acquisition unit correspondingly obtains the network load information in each wireless network current location of described subscriber equipment place;

Determining unit, for the network load information that obtains according to described load acquiring unit and preset strategy, to determine described in using that at least two wireless access technologys transmit the mode of described customer equipment data stream;

Data transmission unit, the mode for determining according to described determining unit transmits the data flow of described subscriber equipment.

The embodiment of the present invention provides a kind of subscriber equipment, comprising:

Descending detecting unit, for detecting mode down direction using at least two wireless access technology transmission user device data streams; Described down direction use the mode of at least two wireless access technology transmission user device data streams be that network load information in packet data network PDN Gateway at least two wireless network current locations according to subscriber equipment place is determined;

Uplink information determining unit, the mode of at least two wireless access technology transmission user device data streams described in using on the mode determination up direction detected according to described descending detecting unit;

Data access unit, for the mode determined according to described uplink information determining unit by the upstream of described subscriber equipment from the wireless network transmissions of correspondence to packet-based core networks.

The embodiment of the present invention provides a kind of networks converge transmission system, and comprise subscriber equipment and PDN Gateway equipment, described subscriber equipment comprises:

Data access unit, for the mode determined according to described uplink information determining unit by the upstream of described subscriber equipment from the wireless network transmissions of correspondence to packet-based core networks;

Described PDN Gateway equipment, for according to the mode network load information determination down direction in the wireless network current location of at least two, described subscriber equipment place using at least two wireless access technology transmission user device data streams.

First according to the positional information of subscriber equipment at least two wireless networks by PDN Gateway in the networks converge transmission of the embodiment of the present invention, correspondingly obtain the network load information in each wireless network current location of this subscriber equipment place, and determine according to network load information and preset strategy the mode using these at least two wireless access technology transmission user device data streams, finally according to the data flow of the mode transmission user equipment determined.Like this according to the load state of network reality, in reasonable distribution aggregation networks, use the data volume of each wireless access technology transmitting data stream, the resource of each wireless network in aggregation networks is effectively utilized.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is that the embodiment of the present invention is with the flow chart of a kind of wireless network convergence transmission method provided;

Fig. 2 is the structural representation of control data stream in a dynamic fashion in the embodiment of the present invention;

Fig. 3 is the flow chart of the another kind of wireless network convergence transmission method that the embodiment of the present invention two provides;

Fig. 4 a is the structural representation that in the UMTS/LTE aggregation networks that provides of the embodiment of the present invention, SGSN supports S3/S4 interface;

Fig. 4 b is the structural representation that in the UMTS/LTE aggregation networks that provides of the embodiment of the present invention, SGSN does not support S3/S4 interface;

Fig. 5 is the structural representation setting up the carrying of subscriber equipment in UMTS and LTE network that the embodiment of the present invention provides;

Fig. 6 is the flow chart of the data flow of the transmission user equipment that carries with semi-static mode control UMTS and LTE that the embodiment of the present invention provides;

Fig. 7 is the flow chart of the data flow of UMTS and LTE of the control in a dynamic fashion carrying transmission user equipment that the embodiment of the present invention provides;

Fig. 8 is the flow chart from current LTE (or UMTS) Internet Transmission State Transferring to aggregation networks transmission state that the embodiment of the present invention provides;

Fig. 9 is the structural representation of a kind of gateway device that the embodiment of the present invention provides;

Figure 10 is the structural representation of the another kind of gateway device that the embodiment of the present invention provides;

Figure 11 is the structural representation of the another kind of gateway device that the embodiment of the present invention provides;

Figure 12 is the structural representation of a kind of subscriber equipment that the embodiment of the present invention provides.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment of the method one:

A kind of wireless network convergence transmission method, mainly to the convergence adopting the different radio of unified packet-based core networks to access, such as to the convergence of UMTS and LTE wireless access, and subscriber equipment can be linked into packet-based core networks from least two different radio opens, the method of the present embodiment is unified packet-based core networks and the gateway of extenal grouped network, namely the method performed by PDN Gateway, flow chart as shown in Figure 1, comprising:

Step 101, obtains the positional information of subscriber equipment at least two wireless networks.

In the present embodiment, subscriber equipment is linked in packet-based core networks by least two radio opens, namely establishes the carrying of at least two kinds of wireless access technologys between subscriber equipment and PDN Gateway.Here positional information energy equipment for indicating user current location in the wireless network can be the identification information of subscriber equipment current area, the identification information of Route Area, subscriber equipment place, or the identification information etc. of subscriber equipment place tracking area.

When subscriber equipment is carrying out wireless network attachment, set up, in the process of amendment or the carrying of deletion wireless network, positional information current for subscriber equipment all can be sent to PDN Gateway by Access Service Network Gateway, wherein, Access Service Network Gateway is the serving network node that subscriber equipment is linked into packet-based core networks, as the serving GPRS support node (ServingGPRSSupportNode of the general packet radio service technology in UMTS network, SGSN), Mobility Management Entity (MobilityManagementEntity in LTE network, and gateway (ServingGateway MME), the equipment such as S-GW).Therefore, when obtaining the positional information of subscriber equipment, PDN Gateway can obtain from Access Service Network Gateway.

Step 102, correspondingly obtains the network load information in each wireless network current location of subscriber equipment place according to positional information.

Here the network load information in subscriber equipment place wireless network current location can be the active users of subscriber equipment current place wireless network current location, offered load rate, the information such as data throughout or data transmission bauds.

In mobile communication system, OSS (OperationSupportSystem, OSS) be a comprehensive service operation and management platform, the information about network is stored in OSS system, comprise the various state informations of network load information, PDN Gateway can to the load information of the respective regions network indicated by this position information of user equipment of OSS system queries.

Step 103, according to network load information and preset strategy, determines to use at least two wireless access technologys to transmit the mode of this customer equipment data stream.

Here it is one or more that preset strategy can comprise in following information: the flow proportional factor of the first wireless network and second wireless network is preset value; The up-downgoing of same data flow uses same wireless access technology to transmit, and the up-downgoing data that such as same transmission control protocol (TransmissionControlProtocol, TCP) connects use same wireless access technology to transmit; Network user's number of the first wireless network respective regions is less than preset value; The upstream of subscriber equipment preferentially uses the second wireless access technology transmission, and when the data transmission bauds of second wireless network is less than preset value, uses first wireless access technology transmitting downlink data stream etc.

Then be understandable that, PDN Gateway can only consider that the mode of wireless access technology transmitting data stream is determined in load actual in network, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, thus realize the load balance of each wireless network;

PDN Gateway both can also consider the load of real network, consider again the application layer data stream information of subscriber equipment, namely the out of Memory such as the actual requirement based on transfer of data of subscriber equipment determines the mode of wireless access technology transmitting data stream, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, the actual requirement of this subscriber equipment can be met again.The load balance of each wireless network can be realized like this, the quality of service requirement of this subscriber equipment can be met again.

The mode that use at least two wireless access technologys that wherein PDN Gateway is determined transmit this customer equipment data stream can comprise: up and each downstream data flow of each of this subscriber equipment by which carrying of any wireless access technology and this wireless access technology should be transmitted.

And the application layer data stream information of subscriber equipment refers to the information such as time delay of the transmission rate of maximum permission that will start the uplink and downlink data flow transmitted, total data volume and maximum permission.Subscriber equipment can obtain application layer data stream information when session (Session) sets up by application layer messages, as passed through Session initiation Protocol (SessionInitiationProtocol, SIP) message, file transfer protocol (FTP) (FileTransmissionProtocol, FTP) and HTML (Hypertext Markup Language) (HypertextTransmissionProtocol, HTTP) message etc. obtain application layer data stream information; PDN Gateway can pass through to "Policy and Charging Rules Function (PolicyandChargingRuleFunction, PCRF) object query, or the deep packet utilizing PDN Gateway built-in detects the application layer data stream information that (DeepPacketInspection, DPI) function obtains this subscriber equipment.

Step 104, according to the data flow of the mode transmission user equipment determined.

It should be noted that, PDN Gateway can according to the mode of the carrying transmitting data stream of each wireless access technology of use determined, up and/or each downstream data flow of each of i.e. subscriber equipment by which carrying of any wireless access technology and this wireless access technology should be transmitted, and correspondingly configures the carrying of each wireless access technology on the up of this subscriber equipment and/or down direction.Like this at down direction, PDN Gateway transmits the data flow of the down direction of this subscriber equipment according to the carrying of wireless access technology on the down direction of configuration, at up direction, subscriber equipment transmits the data flow of the up direction of this subscriber equipment according to the carrying of wireless access technology on the up direction of configuration.

Visible, first according to the positional information of subscriber equipment at least two wireless networks by PDN Gateway in the wireless network aggregate transmission of the embodiment of the present invention, correspondingly obtain the network load information in each wireless network current location of this subscriber equipment place, and determine according to network load information and preset strategy the mode using these at least two wireless access technology transmission user device data streams, finally according to the data flow of the mode transmission user equipment determined.Like this according to the load state of network reality, the data volume using each wireless access technology to transmit in reasonable distribution aggregation networks, makes the resource of each wireless network in aggregation networks be effectively utilized.

The wireless network convergence transmission method of the embodiment of the present invention is that in a specific embodiment, before above-mentioned steps 101, PDN Gateway also performs following steps at the transmission method of subscriber equipment by least two radio open access packet-based core networks:

Step 100, and the carrying of setting up at least two kinds of wireless access technologys between subscriber equipment, and the identification information of the identification information of stored user equipment and the carrying of at least two kinds of wireless access technologys accordingly.

After the carrying of setting up wireless access technology here refers to that subscriber equipment is attached to this wireless network, based on the data transmission channel of this wireless access technology between the subscriber equipment set up and packet-based core networks, particularly, any one or more mode below can be used to set up carrying: the carrying of the multiple wireless access technology that the PDN that subscriber equipment is set up by PDN Gateway connects; The carrying of different wireless access technologys is set up respectively between subscriber equipment and multiple PDN, namely a part of PDN that subscriber equipment is set up by PDN Gateway connects the carrying adopting a kind of wireless access technology, and another part PDN that subscriber equipment is set up by this PDN Gateway connects the carrying adopting another kind of wireless access technology.

It should be noted that, in this embodiment in the process setting up carrying, for the carrying of the multiple wireless access technology of same subscriber equipment, use same PDN address and IP address when setting up a PDN and connecting, avoid the waste of address resource.

Like this after foundation carrying, PDN Gateway just can control by semi-static mode and/or dynamical fashion the distribution adopting each wireless access technology transmitting data stream, particularly:

(1) by semi-static mode control data stream: when control data stream, be carried through traffic flow template (trafficflowtemplate, TFT) and/or the PDN of each wireless access technology set up between subscriber equipment and PDN Gateway are connected and distinguish.

In the present embodiment, the carrying distinguishing different radio access technologies can be connected with PDN, particularly, when subscriber equipment sets up multiple PDN connection by PDN Gateway, can connect from different PDN and adopt different wireless access technologys by configure user equipment, such as subscriber equipment has 5 PDN to connect by PDN Gateway, and wherein 3 PDN of subscriber equipment connect employing wireless access technology A, and another 2 PDN of subscriber equipment connect employing wireless access technology B.

The carrying of different radio access technologies can also be distinguished by traffic flow template, in order to distinguish the data flow of certain carrying transmission from application-layer data packet, the corresponding TFT of every bar carrying, and TFT is a component set filter (packetfilter), each packet filter can comprise the features such as source/destination IP address, protocol type, port range, for mating and isolating the data flow with same characteristic features.Particularly, when there being multiple data flow during the same PDN that subscriber equipment is set up by PDN Gateway connects, this subscriber equipment can be configured adopt different wireless access technologys to transmit from the different data streams that this PDN connects, the TFT corresponding due to these data flow is different, therefore can be distinguished respectively from application-layer data packet, and be transmitted by the carrying of corresponding wireless access technology.

No matter be the carrying being connected or distinguished by TFT different radio access technologies by PDN, PDN Gateway can when performing above-mentioned steps 103, control the carrying transmitting data stream by each wireless access technology in semi-static mode, can realize by A1 or B1 as follows particularly:

A1: only consider the network load information of acquisition in step 102 and preset strategy, determines the traffic flow template TFT of data flow correspondence carrying up direction and/or down direction transmitting subscriber equipment and the corresponding wireless access technology carried;

Due in the process of carrying foundation, subscriber equipment can carry the mark of the wireless access technology of this carrying correspondence in carrying request, then PDN Gateway knows the wireless access technology corresponding to carrying set up between subscriber equipment; And the wireless access technology corresponding to carrying of foundation also known by subscriber equipment.

Then PDN Gateway can determine according to the load of network reality and preset strategy the mode transmitting the wireless access technology that up and/or downstream data flow uses, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, thus realize the load balance of each wireless network, wherein preset strategy, as described in above-mentioned steps 103 step, does not repeat at this.

The concrete established data stream transmission mode of PDN Gateway can comprise: the data flow of up-downlink direction transmission, wherein the corresponding TFT of each data flow; With the carrying etc. of the wireless access technology that transmitting data stream adopts.

B1: according to traffic flow information and the preset strategy of network load information, user apparatus service layer, determines on up direction and/or down direction, transmit this subscriber equipment the traffic flow template of data flow correspondence carrying and the wireless access technology of corresponding carrying.

Be appreciated that, when determining the mode of user device transmissions data flow on up and/or down direction, can according to the requirement based on transfer of data of load information actual in current network and subscriber equipment, determine the mode of transmitting data stream, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, the actual requirement of this subscriber equipment can be met again, the load balance of each wireless network can be realized like this, the quality of service requirement of this subscriber equipment can be met again.Wherein preset strategy, as described in above-mentioned steps 103 step, does not repeat at this.

After adopting the mode of semi-static mode determination transmitting data stream, when performing the data stream transmitting in above-mentioned steps 104, at down direction, PDN Gateway transmits the data flow of the down direction of this subscriber equipment according to the carrying of wireless access technology on the down direction of configuration; At up direction, subscriber equipment transmits the data flow of the up direction of this subscriber equipment according to the carrying of wireless access technology on the up direction of configuration.

It should be noted that, when carrying out control data stream by semi-static mode, make same data flow as far as possible, namely the data flow of the upstream or downstream of same TCP connection adopts the carrying of same wireless access technology to transmit, and can avoid the TCP performance loss that same data flow causes because coming propagation delay time difference comparatively large via different wireless access technologys like this.

(2) by dynamical fashion control data stream: under dynamical fashion, the carrying of the different radio access technologies corresponding to subscriber equipment is connected by the same PDN that PDN Gateway is set up can adopt identical TFT.

During by dynamical fashion control data stream, PDN Gateway only determines the data stream transmitting mode of down direction, and the data stream transmitting mode of up direction is undertaken determining (illustrating in embodiment two below) by subscriber equipment.Then when determining that down direction uses the mode of at least two wireless access technology transmission user device data streams, the data volume of the customer equipment data stream that PDN Gateway can determine down direction adopts the carrying of each wireless access technology to transmit, or the ratio etc. of data volume; Then when performing above-mentioned steps 104, can realize as follows:

A2: the wireless access technology selecting the data flow of subscriber equipment on transmission down direction according to determining amount of data or data volume ratio;

B2: the data flow transmitting subscriber equipment on corresponding down direction with the carrying of the wireless access technology selected.

Be appreciated that, PDN Gateway, when selecting wireless access technology, needs to make down direction uses the data volume of the carrying transmission user device data stream of each wireless access technology or data volume ratio to meet PDN Gateway according to network load information determining amount of data or data volume ratio.

Shown in figure 2, TFT1 Corresponding matching in PDN Gateway and the downstream data flow of separate user equipment 1, and the downstream data flow of TFT2 Corresponding matching and separate user equipment 2, determined the data volume of use wireless access technology 1 and/or 2 transmitting downlink data stream by dynamical fashion after, by the data volume of wireless access technology selection functional entity according to the transmitting downlink data stream determined, select the wireless access technology of transmitting downlink data stream; And the downstream data flow of corresponding subscriber equipment is transmitted according to the carrying of the wireless access technology 1 and/or 2 selected.

It should be noted that, when carrying out control data stream by dynamical fashion, same data flow can be made, namely the data flow of the upstream or downstream of same TCP connection adopts the carrying of different radio access technologies to transmit, and dynamically can control the flow of subscriber equipment in different radio access network flexibly like this.

Because the carrying of the different radio access technologies under dynamical fashion can adopt same TFT, then PDN Gateway can configure the corresponding multiple different radio access technologies carrying of same TFT, make them carry the data flow of identical QoS demand as far as possible, thus avoid same data flow, namely, when the upstream or downstream data flow that connects of same TCP is transmitted via the carrying of different radio access technologies, propagation delay time difference is excessive and the TCP performance loss that causes.

In the embodiment of the present invention, subscriber equipment is linked in packet-based core networks by least two radio opens, and now subscriber equipment is in aggregation networks transmission state; Subscriber equipment can exit wireless network wherein, makes only to be linked in packet-based core networks by a radio open, and now subscriber equipment is in single network transmission state.

In another specific embodiment, subscriber equipment can be changed between single network transmission state and aggregation networks transmission state, particularly:

(1) suppose in the wireless network of subscriber equipment current place first, then subscriber equipment can in following several situation, aggregation networks transmission state is transformed into from single network transmission state, namely subscriber equipment is attached in other wireless networks except the first wireless network again, in such as second wireless network:

A1, subscriber equipment open the function of networks converge transmission automatically;

The function of networks converge transmission do not closed by b1, subscriber equipment, because the because users equipment such as the network coverage only carry data flow by one of them wireless access technology 1, when subscriber equipment enters the overlay area of other wireless networks again;

The function of networks converge transmission do not closed by c1, subscriber equipment, this wireless network 1 is exited due to the offered load of one of them wireless network 1 overweight (or other reason), the reason exiting this wireless network 1 when subscriber equipment is eliminated, and needs the carrying re-establishing this wireless network 1.

For above-mentioned situation a1 and b1, subscriber equipment is directly initiated to the attachment request of second wireless network, after packet-based core networks receive this attachment request, then between PDN Gateway and subscriber equipment, sets up the carrying of the second wireless access technology; For above-mentioned situation c1, need PDN Gateway to detect actual state in second network, such as detect the offered load of second wireless network whether in preset scope, if so, then and between subscriber equipment, set up the carrying of the second wireless access technology.

(2) subscriber equipment in following several situation, can be transformed into the state of single network transmission from aggregation networks transmission state:

A2, subscriber equipment close the function of networks converge transmission automatically;

The movement of b2, subscriber equipment causes it to have left the area of coverage of arbitrary wireless network;

C2, because the condition of arbitrary wireless network is abnormal, or subscriber equipment enters the reasons such as the blind area of arbitrary wireless network, causes subscriber equipment can not use this wireless communication;

D2, because of the reason such as the offered load of the arbitrary wireless network in subscriber equipment place is overweight, subscriber equipment needs to exit this wireless network.

For above-mentioned situation a2, subscriber equipment is directly initiated to the detach request of arbitrary wireless network; For above-mentioned situation b2, subscriber equipment detecting that the signal strength signal intensity of certain wireless network is less than preset threshold value, is then initiated to the detach request of this wireless network; The detach request of subscriber equipment to another wireless network can be initiated by one of them wireless network for above-mentioned situation c2.When PDN Gateway receives this detach request, then exit the carrying of subscriber equipment on another wireless network;

For above-mentioned situation d2, whether the offered load that PDN Gateway can detect the arbitrary wireless network in subscriber equipment place exceedes preset scope, if so, then exits subscriber equipment carrying in the wireless network.

Embodiment of the method two:

A kind of wireless network convergence transmission method, mainly to the convergence of different networks adopting unified packet-based core networks, such as to the convergence of UMTS and LTE wireless network, and subscriber equipment can be linked into packet-based core networks from least two different radio opens, the method of the present embodiment is the method performed by subscriber equipment, flow chart as shown in Figure 3, comprising:

Step 201, detects mode down direction using the data flow of at least two wireless access technology transmission user equipment;

Be appreciated that, control in a dynamic fashion to use different radio access technologies transmit ascending data stream in the present embodiment, because subscriber equipment can not obtain relevant Network load status, therefore subscriber equipment is when the dynamic flow carrying out upstream controls, the method of reverse sync can be adopted, namely mode down direction using at least two wireless access technology transmitting data streams is detected, such as, the carrying etc. of wireless access technology in the downstream data flow that subscriber equipment receives.

Here down direction uses the mode of at least two wireless access technology transmission user device data streams be PDN Gateway in a dynamic fashion, and determine according to the network load information of at least two the wireless network current locations in subscriber equipment place, concrete defining method, as shown in embodiment one, does not repeat them here.

Step 202, according to the mode mode determination up direction detected using at least two wireless access technology transmission user device data streams;

When determining the transmission means of data flow on up direction, subscriber equipment according to data traffic ratio down direction using at least two wireless access technology carryings, or can determine the transmission means of customer equipment data stream on up direction according to preset calculated relationship.Such as: with down direction using the data traffic ratio of at least two wireless access technology carryings as data traffic ratio up direction using at least two wireless access technology carryings; Or be multiplied by by the data traffic ratio of down direction wireless access technology the data traffic ratio that certain scale factor obtains up direction uses at least two wireless access technology carryings, wherein scale factor can be fixedly arranged in subscriber equipment, also can by network side by signaling dynamic-configuration.

It should be noted that, due to High Speed Packet Access (HighSpeedPacketAccess, HSPA) upstream performance is poor, efficiency of transmission is lower, subscriber equipment does not distribute HSPA to transmit the user data of up direction as far as possible, and distribute HSPA to transmit the L1/L2/L3 control signal etc. of eating dishes without rice or wine necessary, like this when carrying out the transmission of upstream, also can reduce the power consumption of subscriber equipment.

Step 203, according to the mode determined by the upstream of subscriber equipment from the wireless network transmissions of correspondence to packet-based core networks.

Visible, in the wireless network aggregate transmission of the embodiment of the present invention by subscriber equipment according to the mode down direction detected using at least two wireless access technology transmitting data streams, determine that subscriber equipment on up direction uses the mode of at least two wireless access technology transmitting data streams, and according to the mode determined by upstream from the wireless network transmissions of correspondence to packet-based core networks.Information due to the data flow of this subscriber equipment on down direction is according to the load state reasonable distribution of network reality, and the resource of each wireless network in aggregation networks is effectively utilized.

The wireless network convergence transmission method of the embodiment of the present invention is that in a specific embodiment, before above-mentioned steps 201, subscriber equipment also performs following steps at the transmission method of subscriber equipment by least two wireless network access packet-based core networks:

Step 200, and the carrying of setting up at least two kinds of wireless access technologys between PDN Gateway.

Subscriber equipment, when setting up the carrying between PDN Gateway, can use any one or more mode below to set up carrying: the PDN that subscriber equipment is set up by PDN Gateway connects the carrying adopting multiple wireless access technology; The carrying of different wireless access technologys is set up respectively between subscriber equipment and multiple PDN, namely subscriber equipment connects carrying for a kind of wireless access technology by a part of PDN that PDN Gateway is set up, and subscriber equipment connects the carrying for another kind of wireless access technology by another part PDN that PDN Gateway is set up.

In the present embodiment, subscriber equipment uses same PDN address and IP address by PDN Gateway, sets up the carrying of the multiple wireless access technology that same PDN connects, this avoid the waste of address resource; Subscriber equipment passes through PDN Gateway and uses different IP addresses, set up the carrying that different PDN connects corresponding different radio access technologies respectively, and by the identification information of subscriber equipment, PDN Gateway just can know that a subscriber equipment establishes the carrying of which wireless access technology.

Illustrate for the aggregate transmission of UMTS and LTE network below:

In UMTS and LTE aggregation networks, have unified packet-based core networks, wherein LTE network system comprises the network elements such as Mobility Management Entity, gateway, PDN Gateway and "Policy and Charging Rules Function entity; And UMTS network system comprises serving GPRS support node, the network element such as PCRF and PDN Gateway of general packet radio service technology.

Shown in figure 4a, when the SGSN of UMTS system supports S3/S4 interface, UMTS wireless access network is connected with SGSN by Iu interface, and SGSN is connected with difference MME with S-GW by S3 with S4 interface, and UMTS wireless access network directly can also be connected with S-GW by S12 interface; LTE wireless access network is connected with MME with S-GW with interface in the user plane S1u respectively by chain of command interface S1-mme, is then connected by chain of command interface S11 between MME and S-GW.S-GW is connected with PDN Gateway by S5 interface, and PDN Gateway is then connected with packet-based core networks by SGi interface, is connected by Gx interface with PCRF simultaneously.

Shown in figure 4b, when the SGSN of UMTS system does not support S3/S4 interface, the structure of aggregation networks and SGSN support the aggregation networks structural similarity of S3/S4 interface, unlike in this aggregation networks,, now SGSN is connected with PDN Gateway with MME respectively by gn interface; And UMTS wireless access network is not directly connected with S-GW by S12 interface.

The wireless network convergence transmission method of the embodiment of the present invention goes in above-mentioned Fig. 4 a and the aggregation networks system shown in Fig. 4 b.And in the present embodiment, subscriber equipment has LTE/UMTS aggregate transmission function, network system utilizes broadcast to subscriber equipment, this network system of notifying user equipment supports LTE/UMTS networks converge transfer function, user can open the LTE/UMTS aggregate transmission function of subscriber equipment by this broadcast, and in access network system.If in order to save electricity, the LTE/UMTS aggregate transmission function of subscriber equipment can be closed, namely only using LTE or UMTS network system to carry out transmitting data stream.

Particularly, for the situation of the SGSN support S3/S4 interface of UMTS system:

(1) carrying about UMTS and LTE between subscriber equipment and packet core network side is set up:

Shown in figure 5, in one case, subscriber equipment can first access LTE wireless network, completes network attachment (NetworkAttachment) thus set up to carry with the LTE of PDN Gateway, and network side can be user equipment allocation IP address in this process.And default bearer (defaultbearer) can be comprised in the LTE carrying of setting up, or default bearer and at least one dedicated bearer (dedicatedbearer), S1 between radio bearer (RadioBearer, RB) between the base station (eNB) being specially subscriber equipment and LTE wireless network, eNB and S-GW carries and S5 between S-GW and PDN Gateway carries.The data flow of correspondence can be sent to packet-based core networks by the carrying of LTE by up TFT by such subscriber equipment.

If subscriber equipment opens LTE/UMTS networks converge function, when subscriber equipment finds that present bit is equipped with the network coverage of UMTS, the IP address access UMTS wireless network that before can using, network side is user equipment allocation, after completing network attachment, the UMTS set up between PDN Gateway carries.Comprise in the UMTS carrying of setting up: block data protocol context (PDPContext) between subscriber equipment and SGSN, or block data protocol context or at least one secondary packet data protocol context (SecondaryPDPContext), be specially the RAB (RAB) between subscriber equipment and UMTS wireless network (RAN), and the Iu between UMTS wireless network and SGSN carries; And also comprise default bearer between SGSN to packet-based core networks in the UMTS carrying of setting up, or default bearer and at least one dedicated bearer, be specially the S4 carrying between SGSN and S-GW, and the S5 carrying between S-GW and PDN Gateway.

In another case, subscriber equipment can first access UMTS wireless network, after completing network attachment, sets up signaling foundation carry with the UMTS between PDN Gateway by independent carrying; If subscriber equipment opens LTE/UMTS networks converge function, when subscriber equipment finds that present bit is equipped with the network coverage of LTE, will access LTE wireless network, the LTE set up between PDN Gateway carries.

It should be noted that, subscriber equipment can use same IP address to set up the carrying of LTE and UMTS of same PDN by PDN Gateway, also can use different IP addresses by PDN Gateway, set up the carrying of LTE and UMTS that different PDN connects respectively; And after the carrying of setting up LTE and UMTS, can the identification information of stored user equipment accordingly at PDN Gateway, the identification information carried with LTE and UMTS, such PDN Gateway just can know which carrying this subscriber equipment establishes.

(2) carry the data flow of transmission user equipment with semi-static mode control UMTS and LTE, realize especially by following steps, flow chart as shown in Figure 6:

Step 2-1, PDN Gateway by the customer position information (UserLocationInformation, ULI) carried in the message relevant to bearer management, can obtain the positional information of subscriber equipment at LTE and UMTS wireless network.Such as PDN Gateway can respond (DeleteBearerResponse) or delete the message such as session request (DeleteSessionResponse) and carry ULI from establishment session request (CreateSessionRequest), bearing resource order (BearerResourceCommand), amendment carrying request (ModifyBearerRequest), more new bearer request (UpdateBearerResponse), deleting bearing, obtains the positional information of subscriber equipment place network.

Above-mentioned ULI can be the information such as cellular global identity (CGI), evolution accessing network cellular global identity (ECGI), Routing Area Identifier (RAI) and tracking area identification (TAI), wherein: CGI is the mark of UMTS community, subscriber equipment place; ECGI is the mark of LTE community, subscriber equipment place; RAI is subscriber equipment Route Area (RoutingArea in packet switching (PS) territory of UMTS system, RA) mark, namely the region that one or more geographically adjacent community is corresponding, when the RA of subscriber equipment changes, subscriber equipment can initiate Routing Area Update (RAU) process, ensures that SGSN can know for sure the new position, Route Area at the current place of this subscriber equipment; TAI is the tracking area (TrackingArea of subscriber equipment in LTE system, TA) mark, namely the region that one or more geographically adjacent community is corresponding, when the TA of subscriber equipment changes, subscriber equipment can initiating updating of tracking area (TAU) process, ensures that MME/S-GW can know for sure the new tracking area position at the current place of this subscriber equipment.

Be appreciated that, carry out network attachment at subscriber equipment, process that foundation, amendment and deletion LTE and UMTS carry, include in the mobility management process such as the reorientation of the network nodes such as subscriber equipment generation tracing section updating (TAU), Routing Area Update (RAU) and SGSN and S-GW/MME, ULI can be sent to PDN Gateway by SGSN and S-GW/MME.SGSN can provide CGI and RAI information to PDN Gateway in the umts system, and in LTE system, S-GW/MME can provide ECGI and TAI information to PDN Gateway, and therefore PDN Gateway can know the positional information of subscriber equipment in UMTS and LTE system.

Step 2-2, PDN Gateway are according to the positional information CGI of the subscriber equipment obtained in UMTS and LTE and ECGI, network load information in these two network current locations at this subscriber equipment place of OSS system queries, records the average active number of users in each RA or TA in a period of time, information that average traffic even load is relevant in OSS system.

Step 2-3, PDN Gateway are under existing qos policy controlling mechanism, application layer data stream information can be obtained by PCRF, and according to network load information, this application layer data stream information and preset strategy, determine up-downlink direction to use LTE and UMTS transmit the TFT of data flow correspondence carrying and the wireless access technology of corresponding carrying of this subscriber equipment.Like this can load preferably in control LTE and UMTS two systems, improve service efficiency and the throughput of two systems to greatest extent.

Be appreciated that, subscriber equipment and PDN Gateway can know that the wireless access technology corresponding to each carrying of foundation belongs to LTE or UMTS definitely, data flow timing is really being carried out in semi-static mode, the carrying distinguishing different radio access technologies can be connected by TFT and/or PDN, specifically can determine to use the TFT of LTE and UMTS transmitting data stream correspondence carrying and the wireless access technology of corresponding carrying, and the upstream or downstream data flow as far as possible making same TCP connect uses the carrying of same wireless access technology to transmit.

Step 2-4, after the mode determining up-downlink direction transmitting data stream, the carrying of each wireless access technology on PDN Gateway then carrys out this subscriber equipment of corresponding configuration up-downlink direction according to the mode determined, and use the carrying of configuration to carry out the data flow of transmission user equipment.

(3) control the customer equipment data stream using the carrying of UMTS and LTE to transmit in a dynamic fashion, specifically can realize as follows, flow chart as shown in Figure 7:

Step 3-1, the PDN Gateway ULI by carrying in the message relevant to bearer management, obtains the positional information of subscriber equipment at LTE and UMTS wireless network, such as CGI/ECGI, and the information such as RAI/TAI.

Step 3-2, PDN Gateway according to the subscriber equipment obtained in the positional information in UMTS and LTE, the network load information of current location in these two networks at this subscriber equipment place of OSS system queries.

Step 3-3, PDN Gateway are according to network load information and preset strategy, determine down direction to use LTE and UMTS transmit the mode of the data flow of this subscriber equipment, comprise the data volume using LTE and UMTS transmitting downlink data stream, such as concrete data volume, or the ratio etc. of data volume.Load so preferably in control LTE and UMTS two systems, improves service efficiency and the throughput of two systems to greatest extent.

Step 3-4, PDN Gateway then select corresponding LTE or UMTS according to the data volume of the down direction transmitting data stream determined or data volume ratio, and downstream data flow is carried out transmitting downlink data stream according to the carrying of LTE or UMTS selected.

Be appreciated that, carry out the timing really of data stream transmitting mode in a dynamic fashion, same TFT and/or PDN connects the carrying of the corresponding different radio access technologies of energy, particularly, the different grouping of same data flow can be made to adopt the carrying of different radio access technologies to transmit, and make the corresponding QoS of the carrying of different radio access technologies identical as far as possible.

And for the determination of up direction data stream transmitting mode, determined by the method for subscriber equipment by reverse sync, namely subscriber equipment detects mode down direction using LTE and UMTS transmitting data stream, and according to the mode determination up direction detected using the mode of LTE and UMTS transmitting data stream, end user's equipment according to the mode of the up direction transmitting data stream determined, by upstream from LTE or the UMTS wireless network transmissions of correspondence to packet-based core networks.

(4) conversion between aggregation networks transmission state and single network transmission state:

When subscriber equipment is from LTE (or UMTS) Internet Transmission State Transferring to the process of aggregation networks transmission state, subscriber equipment directly can be initiated to the attaching process of UMTS (or LTE) network, when PDN Gateway receives the attachment request of UMTS (or LTE) network, then the UMTS (or LTE) set up between subscriber equipment carries.

Shown in figure 8, subscriber equipment also can realize as follows from current LTE (or UMTS) Internet Transmission State Transferring to aggregation networks transmission state:

Step 4-1, when PDN Gateway detects that the load of subscriber equipment place UMTS (or LTE) network is in preset scope or other reasons, determine the carrying of setting up UMTS (or LTE) wireless access technology between subscriber equipment;

Step 4-2, PDN Gateway send sets up carrying request to S-GW, setting up the identification information comprising UMTS (or LTE) in carrying request, particularly, cell " type of wireless access technology " can be increased setting up in bearing request message, and add the identification information of UMTS (or LTE) in cell that this is newly-increased;

Step 4-3, S-GW set up the carrying of which wireless access technology according to setting up information judgement newly-increased in carrying request, judge the carrying of setting up UMTS (or LTE) wireless access technology between subscriber equipment in the present embodiment;

Step 4-4, S-GW by handing to MME or SGSN by setting up carrying request, by MME or SGSN notifying user equipment, require that this subscriber equipment is initiated at the attachment of UMTS (or LTE) wireless network and loading establishing process.

When subscriber equipment is transformed into the process of LTE (or UMTS) Internet Transmission state from aggregation networks transmission state, subscriber equipment directly can be initiated to the detachment process of UMTS (or LTE) wireless network, when PDN Gateway receives the detach request of UMTS (or LTE) wireless network, then exit the carrying of the UMTS (or LTE) between subscriber equipment.

Also when PDN Gateway detects the overload of UMTS (or LTE) wireless network, deleting bearing request can be sent to S-GW, and in deleting bearing request, comprises the identification information of UMTS (or LTE); Then S-GW is according to the identification information of UMTS (or LTE), by MME or SGSN notifying user equipment, requires that the detachment process at UMTS (or LTE) wireless network initiated by this subscriber equipment.

Wireless network convergence transmission method when SGSN for UMTS system does not support S3/S4 interface, when supporting S3/S4 interface with the SGSN of UMTS system, wireless network convergence transmission method is similar, does not repeat at this.

A kind of gateway device that the embodiment of the present invention provides, the gateway device of the present embodiment can be PDN Gateway, and structural representation as shown in Figure 9, comprising:

Position acquisition unit 10, for obtaining the positional information of subscriber equipment at least two wireless networks;

Here positional information energy equipment for indicating user current location in the wireless network can be the identification information of subscriber equipment current area, the identification information of Route Area, subscriber equipment place, or the identification information etc. of subscriber equipment place tracking area.

Load acquiring unit 11, the positional information for obtaining according to described position acquisition unit 10 correspondingly obtains the network load information in each wireless network current location of described subscriber equipment place;

Determining unit 12, for the network load information that obtains according to described load acquiring unit 11 and preset strategy, to determine described in using that at least two wireless access technologys transmit the mode of described customer equipment data stream;

Here preset strategy, as described in embodiment of the method one, does not repeat at this.

Be appreciated that, determining unit 12 can only consider that the mode of wireless access technology transmitting data stream is determined in load actual in network, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, thus realize the load balance of each wireless network;

Determining unit 12 both can also consider the load of real network, consider again the application layer data stream information of subscriber equipment, namely the out of Memory such as the actual requirement based on transfer of data of subscriber equipment determines the mode of wireless access technology transmitting data stream, after making the data flow by the carrying transmission user equipment of respective wireless access technology, the requirement in preset strategy can be met, the actual requirement of this subscriber equipment can be met again.The load balance of each wireless network can be realized like this, the quality of service requirement of this subscriber equipment can be met again.

The mode that use at least two wireless access technologys that wherein determining unit 12 is determined transmit this customer equipment data stream can comprise: up and each downstream data flow of each of this subscriber equipment by which carrying of any wireless access technology and this wireless access technology should be transmitted.

Data transmission unit 13, the mode for determining according to described determining unit 12 transmits the data flow of described subscriber equipment.

Data transmission unit 13 can according to the mode of the carrying transmitting data stream of each wireless access technology of use determined, up and/or each downstream data flow of each of i.e. subscriber equipment by which carrying of any wireless access technology and this wireless access technology should be transmitted, and correspondingly configures the carrying of each wireless access technology on the up of this subscriber equipment and/or down direction.Like this at down direction, PDN Gateway transmits the data flow of the down direction of this subscriber equipment according to the carrying of wireless access technology on the down direction of configuration, at up direction, subscriber equipment transmits the data flow of the up direction of this subscriber equipment according to the carrying of wireless access technology on the up direction of configuration.

Visible, in the gateway device of the embodiment of the present invention, the positional information of subscriber equipment at least two wireless networks that load acquiring unit 11 obtains according to position acquisition unit 10, correspondingly obtain the network load information in each wireless network current location of this subscriber equipment place, and determined the mode of the data flow using these at least two wireless access technology transmission user equipment according to network load information and preset strategy by determining unit 12, final data transmission unit 13 is according to the data flow of the mode transmission user equipment determined.Like this according to the load state of network reality, the data volume using each wireless access technology to transmit in dynamic assignment aggregation networks, makes the resource of each wireless network in aggregation networks be effectively utilized.

With reference to shown in Figure 10, in a specific embodiment, gateway device can also comprise: multiple carrying is set up unit 14 and exited load bearing unit 15, wherein:

Unit 14 is set up in multiple carrying, for setting up the carrying of at least two kinds of wireless access technologys between described subscriber equipment, and stores the identification information of the identification information of described subscriber equipment and the carrying of described at least two kinds of wireless access technologys accordingly;

Multiple carrying is set up unit 14 and any one or more mode below can be used to set up carrying: the carrying of the multiple wireless access technology that the PDN that subscriber equipment is set up by PDN Gateway connects; The carrying of different wireless access technologys is set up respectively between subscriber equipment and multiple PDN, namely a part of PDN that subscriber equipment is set up by PDN Gateway connects the carrying adopting a kind of wireless access technology, and another part PDN that subscriber equipment is set up by this PDN Gateway connects the carrying adopting another kind of wireless access technology.

Exit load bearing unit 15, for receiving the detach request of described subscriber equipment at arbitrary wireless network, or detect that the offered load of the arbitrary wireless network in described subscriber equipment place exceedes preset scope, then exit the carrying of described subscriber equipment at described arbitrary wireless network.

Multiple carrying is set up unit 14 and can be comprised single carrying and set up unit 140, for receiving the attachment request of described subscriber equipment at second wireless network, or detect that the offered load of described second wireless network is in preset scope, then and between described subscriber equipment, set up the carrying of the second wireless access technology; Described second wireless network is the wireless network outside the wireless network of described subscriber equipment current place first.

In the present embodiment, the carrying of setting up the second wireless access technology between unit 140 and subscriber equipment is set up in the single carrying can set up in unit 14 by multiple carrying, thus subscriber equipment can be transformed into aggregation networks transmission state from single network transmission state; And the carrying of subscriber equipment at arbitrary wireless network can be exited by exiting load bearing unit 15, subscriber equipment is transformed into single network transmission state from aggregation networks transmission state.

With reference to shown in Figure 11, in another specific embodiment, determining unit 12 specifically can comprise the first determining unit 121, second determining unit 122 and the 3rd determining unit 123, and data transmission unit 13 can comprise wireless selected cell 132 and wireless routing unit 133, wherein:

First determining unit 121, for determining that up direction and/or down direction transmit the traffic flow template TFT of data flow correspondence carrying and the wireless access technology of corresponding carrying of described subscriber equipment;

Second determining unit 122, for according to the operation layer traffic flow information of described network load information, described subscriber equipment and preset strategy, determine the traffic flow template TFT of described user device transmissions data flow correspondence carrying and the wireless access technology of corresponding carrying on up direction and/or down direction.

In the present embodiment, the first determining unit 121 and the second determining unit 122 carry out control data stream by semi-static mode, and same data flow can be made as far as possible, namely the data flow of the upstream or downstream of same TCP connection adopts the carrying of same wireless access technology to transmit, and can avoid the TCP performance loss that same data flow causes because coming propagation delay time difference comparatively large via different wireless access technologys like this.The wherein corresponding TFT of each data flow.

After in gateway device, the first determining unit 121 and the second determining unit 122 determine to transmit the mode of up and/or downstream data flow with the semi-static method of salary distribution, carried out the carrying of each wireless access technology of corresponding configuration up-downlink direction by data transmission unit 13 according to the mode that determining unit 12 is determined, and transmit the data flow of up-downlink direction according to the carrying of configuration.

3rd determining unit 123, for determining data volume or the data volume ratio of at least two wireless access technology transmission user device data streams described in down direction use;

Wireless selected cell 132, for selecting according to the 3rd determining unit 123 determining amount of data in described determining unit 12 or data volume ratio wireless access technology down direction transmitting the data flow of described subscriber equipment;

Wireless routing unit 133, the data flow of described subscriber equipment on the carrying transmission down direction of the wireless access technology selected with described wireless selected cell 132.

In the present embodiment, gateway device carries out control data stream by dynamical fashion, 3rd determining unit 123 of determining unit 12 determines the data volume or the data volume ratio that down direction use each wireless access technology transmitting downlink data stream in a dynamic fashion, then wireless selected cell 132 can select according to the 3rd determining unit 123 determining amount of data or data volume ratio the wireless access technology that transmitting downlink data stream is corresponding, and by wireless routing unit 133 according to the wireless access technology transmitting downlink data selected.

Because the carrying of the different radio access technologies under dynamical fashion can adopt same TFT, then can configure the corresponding multiple different radio access technologies carrying of same TFT, make them carry the data flow of identical QoS demand as far as possible, thus avoid same data flow, namely, when the upstream or downstream data flow that connects of same TCP is transmitted via the carrying of different radio access technologies, propagation delay time difference is excessive and the TCP performance loss that causes.

The embodiment of the present invention also provides a kind of subscriber equipment, and structural representation as shown in figure 12, comprising:

Descending detecting unit 20, for detecting mode down direction using at least two wireless access technology transmission user device data streams; Described down direction use the mode of at least two wireless access technology transmission user device data streams be that grouping wireless network PDN Gateway is determined according to the network load information in the wireless network current location of at least two, subscriber equipment place;

Uplink information determining unit 21, the mode of at least two wireless access technology transmission user device data streams described in using on the mode determination up direction detected according to described descending detecting unit 20;

Uplink information determining unit 21 is when determining the transmission means of data flow on up direction, according to data traffic ratio down direction using at least two wireless access technology carryings, or the transmission means of customer equipment data stream on up direction can be determined according to preset calculated relationship.Such as: with down direction using the data traffic ratio of at least two wireless access technology carryings as data traffic ratio up direction using at least two wireless access technology carryings; Or be multiplied by by the data traffic ratio of down direction wireless access technology the data traffic ratio that certain scale factor obtains up direction uses at least two wireless access technology carryings, wherein scale factor can be fixedly arranged in subscriber equipment, also can by network side by signaling dynamic-configuration.

Data access unit 22, for the mode determined according to described uplink information determining unit 21 by the upstream of described subscriber equipment from the wireless network transmissions of correspondence to packet-based core networks.

Visible, in the subscriber equipment of the embodiment of the present invention, the down direction detected according to descending detecting unit 20 by uplink information determining unit 21 uses the mode of at least two wireless access technology transmitting data streams, determine that subscriber equipment on up direction uses the mode of at least two wireless access technology transmitting data streams, and by data access unit 22 by data flow from the wireless network transmissions of correspondence to packet-based core networks.Information due to the data flow of this subscriber equipment on down direction dynamically determines according to the load state of network reality, and the resource of each wireless network in aggregation networks is effectively utilized.

In a specific embodiment, subscriber equipment also comprises carrying and sets up unit 23, for being set up the carrying of at least two kinds of wireless access technologys by described PDN Gateway.

Carrying sets up unit 23 when setting up the carrying between PDN Gateway, and any one or more mode below can be used to set up carrying: the PDN set up by PDN Gateway connects the carrying adopting multiple wireless access technology; And between multiple PDN, set up the carrying of different wireless access technologys respectively, namely carrying is set up unit 23 and is connected carrying for a kind of wireless access technology by a part of PDN that PDN Gateway is set up, and carrying is set up unit 23 and connected carrying for another kind of wireless access technology by another part PDN that PDN Gateway is set up.

In the present embodiment, carrying is set up unit 23 by PDN Gateway and is used same PDN address and IP address, sets up the carrying of the multiple wireless access technology that same PDN connects, this avoid the waste of address resource; Carrying set up unit 23 by PDN Gateway and use different IP addresses, set up the carrying that different PDN connects corresponding different radio access technologies respectively, and by the identification information of subscriber equipment, PDN Gateway just can know that a subscriber equipment establishes the carrying of which wireless access technology.

The embodiment of the present invention also provides a kind of wireless network aggregate transmission system, and in this system, plurality of wireless networks has unified packet-based core networks, comprises subscriber equipment and PDN Gateway equipment, wherein subscriber equipment subscriber equipment as shown in figure 12;

And PDN Gateway equipment, for according to the mode network load information determination down direction in the wireless network current location of at least two, subscriber equipment place using at least two wireless access technology transmission user device data streams.

Networks converge transmission can be carried out according to the method described in embodiment one and two between unit in subscriber equipment in the embodiment of the present invention and gateway device, not repeat at this.

In sum, the embodiment of the present invention provides wireless network assemblage method, system and equipment, first according to the positional information of subscriber equipment at least two wireless networks by PDN Gateway particularly, correspondingly obtain the network load information in each wireless network current location of this subscriber equipment place, and determine the mode of the data flow using these at least two wireless access technology transmission user equipment according to network load information and preset strategy, finally according to the data flow of the mode transmission user equipment determined.Like this according to the load state of network reality, the data volume using each wireless access technology to transmit in reasonable distribution aggregation networks, makes the resource of each wireless network in aggregation networks be effectively utilized.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, and storage medium can comprise: read-only memory (ROM), random access memory (RAM), disk or CD etc.

Above to the method, system and device of the wireless network aggregate transmission that the embodiment of the present invention provides, be described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a wireless network convergence transmission method, is characterized in that, comprising:

Use the carrying of setting up at least two kinds of wireless access technologys between same PDN address and subscriber equipment, and store the identification information of the identification information of described subscriber equipment and the carrying of described at least two kinds of wireless access technologys accordingly;

2. the method for claim 1, is characterized in that, sets up the carrying of at least two kinds of wireless access technologys, comprising between described and described subscriber equipment:

Receive the attachment request of described subscriber equipment at second wireless network, or detect that the offered load of described second wireless network is in preset scope, then and between described subscriber equipment, set up the carrying of the second wireless access technology;

Described second wireless network is the wireless network outside the wireless network of described subscriber equipment current place first.

3. method as claimed in claim 2, it is characterized in that, described at least two wireless networks comprise universal mobile telecommunications system UMTS and Long Term Evolution LTE network, then and set up the carrying of the second wireless access technology between described subscriber equipment, comprising:

Packet data network PDN Gateway sends sets up carrying request to gateway S-GW, comprises the identification information of described second wireless access technology in described foundation carrying request;

Described S-GW is according to the identification information of described second wireless access technology, described subscriber equipment is notified, so that described subscriber equipment is initiated at the attachment of described second wireless network and loading establishing process by the serving GPRS support node SGSN of mobile management entity MME or packet radio service technology.

4. the method for claim 1, is characterized in that, also comprises:

Receive the detach request of described subscriber equipment at arbitrary wireless network, or detect that the offered load of the arbitrary wireless network region in described subscriber equipment place exceedes preset scope, then exit the carrying of described subscriber equipment in described arbitrary wireless network.

5. method as claimed in claim 4, it is characterized in that, described at least two wireless networks comprise universal mobile telecommunications system UMTS and Long Term Evolution LTE network, then exit the carrying of described subscriber equipment in described arbitrary wireless network, comprising:

Packet data network PDN Gateway sends deleting bearing request to S-GW, comprises the identification information of described arbitrary wireless access technology in described deleting bearing request;

Described S-GW is according to the identification information of described arbitrary wireless access technology, described subscriber equipment is notified, so that the attachment removal at described arbitrary wireless network initiated by described subscriber equipment by the serving GPRS support node SGSN of mobile management entity MME or packet radio service technology.

6. the method as described in any one of claim 1 to 5, is characterized in that,

Described according to described network load information and preset strategy, determine that at least two wireless access technologys described in using transmit the mode of described customer equipment data stream, comprising: determine that up direction and/or down direction transmit the traffic flow template TFT of data flow correspondence carrying and the wireless access technology of corresponding carrying of described subscriber equipment; Or,

According to operation layer traffic flow information and the preset strategy of described network load information, described subscriber equipment, determine on up direction and/or down direction, transmit described subscriber equipment the traffic flow template TFT of data flow correspondence carrying and the wireless access technology of corresponding carrying.

7. the method as described in any one of claim 1 to 5, is characterized in that,

According to described network load information and preset strategy, determine that at least two wireless access technologys described in using transmit the mode of described customer equipment data stream, comprising: determine down direction use described in the data volume of at least two wireless access technology transmission user device data streams or data flow ratio;

The then described data flow transmitting described subscriber equipment according to the described flow control information determined, comprising:

Wireless access technology down direction transmitting described customer equipment data stream is selected according to described determining amount of data or data volume ratio;

By the data flow of described subscriber equipment on the carrying transmission down direction of the wireless access technology of described selection.

8. a networks converge transmission method, is characterized in that, comprising:

By packet data network PDN Gateway and the carrying of at least two kinds of wireless access technologys using same PDN address to set up same PDN to connect;

Detect mode down direction using at least two wireless access technology transmission user device data streams; Described down direction use the mode of at least two wireless access technology transmission user device data streams be that described packet data network PDN Gateway is determined according to the network load information in the wireless network current location of at least two, subscriber equipment place;

9. a gateway device, is characterized in that, comprising:

Unit is set up in multiple carrying, for using the carrying of setting up at least two kinds of wireless access technologys between same PDN address and subscriber equipment, and store the identification information of the identification information of described subscriber equipment and the carrying of described at least two kinds of wireless access technologys accordingly;

10. gateway device as claimed in claim 9, it is characterized in that, described multiple carrying is set up unit and is specifically comprised:

Unit is set up in single carrying, for receiving the attachment request of described subscriber equipment at second wireless network, or detect that the offered load of described second wireless network is in preset scope, then and between described subscriber equipment, set up the carrying of the second wireless access technology; Described second wireless network is the wireless network outside the wireless network of described subscriber equipment current place first.

11. gateway devices as claimed in claim 10, is characterized in that, also comprise:

Exit load bearing unit, for receiving the detach request of described subscriber equipment at arbitrary wireless network, or detect that the offered load of the arbitrary wireless network in described subscriber equipment place exceedes preset scope, then exit the carrying of described subscriber equipment in described arbitrary wireless network.

12. gateway devices as described in any one of claim 9 to 11, it is characterized in that, described determining unit comprises:

First determining unit, for determining that up direction and/or down direction transmit the traffic flow template TFT of data flow correspondence carrying and the wireless access technology of corresponding carrying of described subscriber equipment;

Second determining unit, for according to the traffic flow information of described network load information, described user apparatus service layer and preset strategy, determine the traffic flow template TFT of described user device transmissions data flow correspondence carrying and the wireless access technology of corresponding carrying on up direction and/or down direction.

13. gateway devices as described in any one of claim 9 to 11, it is characterized in that, described determining unit comprises: the 3rd determining unit, for determining data volume or the data volume ratio of at least two wireless access technology transmission user device data streams described in down direction use;

Described data transmission unit comprises:

Wireless selected cell, for selecting according to described 3rd determining unit determining amount of data or data volume ratio wireless access technology down direction transmitting the data flow of described subscriber equipment;

Wireless routing unit, the data flow of described subscriber equipment on the carrying transmission down direction of the wireless access technology selected with described wireless selected cell.

14. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Unit is set up in carrying, for by packet data network PDN Gateway and the carrying of at least two kinds of wireless access technologys using same PDN address to set up same PDN to connect;

Descending detecting unit, for detecting mode down direction using at least two wireless access technology transmission user device data streams; Described down direction use the mode of at least two wireless access technology transmission user device data streams be that network load information in described packet data network PDN Gateway at least two wireless network current locations according to subscriber equipment place is determined;

15. 1 kinds of networks converge transmission systems, is characterized in that, comprise subscriber equipment and PDN Gateway equipment, described subscriber equipment subscriber equipment as claimed in claim 14;